Assembly of the mitochondrial genome of the hydrothermal vent crab Segonzacia mesatlantica and detection of potential nuclear pseudogenes

Abstract : We assembled the mitogenome of the Bythograeid crab Segonzacia mesatlantica, using long-range amplification of the mitochondrial genome. The mitogenome is 15,521 base pair long (33.8% A, 21.7% C, 10.5% G, 34%T) with 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNAs and a 624 bp AT-rich region. The gene arrangement is similar to other Brachyuran species. A whole genome shotgun sequencing approach revealed the presence of mitochondrial pseudogenes in the nuclear genome. This fifth mitogenome for a species of Bythograeidae should help resolve the puzzling question of the evolutionary origin of a family limited to deep-sea hydrothermal vents.
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Perrine Mandon, Laetitia Aznar-Cormano, Stephane Hourdez, Sarah Samadi. Assembly of the mitochondrial genome of the hydrothermal vent crab Segonzacia mesatlantica and detection of potential nuclear pseudogenes. Mitochondrial DNA Part B Resources, Taylor & Francis Online, 2017, 2 (1), pp.291-293. ⟨10.1080/23802359.2017.1318674⟩. ⟨hal-01550571⟩

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